I think what's clear is that for the first time you have a document that is signed by the leaders of the major industrial states, who among them account for a significant percentage of global emissions, mentioning the desire to set a target. In each of the national plans, of course, there are target years and base years. The objective is to have others sign on the same basis, but all agreeing that the ultimate goal of 50% reduction by 2050 is the way forward.
